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Knocking is an abnormal combustion phenomenon in internal combustion engines.
Knocking occurs when the air-fuel mixture in the engine's cylinders ignites prematurely or unevenly.
It produces a knocking or pinging sound, which can cause damage to the engine if not addressed.
Factors contributing to knocking include low octane fuel, high engine temperatures, and incorrect ignition timing.
Efficiency of a boiler can be increased by improving insulation, optimizing combustion, and regular maintenance.
Improve insulation to reduce heat loss
Optimize combustion by adjusting air-to-fuel ratio and using efficient burners
Regular maintenance to clean and repair components
Use economizers to recover waste heat
Upgrade to high-efficiency boilers
Implement energy management systems to monitor and control boiler operati
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posted on 24 Jan 2025
I applied via Approached by Company and was interviewed in Sep 2023. There were 3 interview rounds.
Education related Questions Asked
There are seven basic types of logic gates: AND, OR, NOT, NAND, NOR, XOR, and XNOR.
AND gate: output is high only if all inputs are high
OR gate: output is high if any input is high
NOT gate: output is the inverse of the input
NAND gate: output is low only if all inputs are high
NOR gate: output is low if any input is high
XOR gate: output is high if inputs are different
XNOR gate: output is high if inputs are the same
posted on 25 Jan 2024
I applied via Walk-in and was interviewed in Dec 2023. There were 2 interview rounds.
A half wave circuit diagram shows the flow of current in a circuit during half of the input cycle.
A half wave rectifier circuit consists of a diode, a resistor, and a load.
During the positive half cycle of the input signal, the diode conducts and allows current to flow through the load.
During the negative half cycle, the diode blocks the current flow.
The output waveform of a half wave rectifier is a pulsating DC wavefo...
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
posted on 11 Mar 2024
posted on 26 Jan 2025
I was interviewed before Jan 2024.
Easy 10 basic questions
MCCB stands for Molded Case Circuit Breaker, a type of electrical protection device.
MCCBs are used to protect electrical circuits from overloads and short circuits.
They have adjustable trip settings for different levels of protection.
Commonly used in industrial and commercial applications.
Examples include Siemens, Schneider Electric, and ABB MCCBs.
The panel size refers to the dimensions of the control panel used in the production process.
Panel size can vary depending on the specific equipment and machinery being used.
Common panel sizes include 24x24 inches, 36x36 inches, and 48x48 inches.
Panel size is important for determining the layout and placement of components within the control panel.
Panel size may also impact the overall footprint of the production equipm
I applied via Campus Placement
I am a Production Engineer with a passion for problem-solving and continuous improvement. In my free time, I enjoy hiking, playing guitar, and reading.
Experienced Production Engineer
Skilled in problem-solving and continuous improvement
Passionate about optimizing production processes
Hobbies include hiking, playing guitar, and reading
Havells is a leading company in the electrical industry with a strong reputation and growth opportunities.
Havells is known for its high-quality products and innovative solutions.
The company has a strong presence in the market and is continuously expanding its operations.
Havells offers excellent career growth opportunities and a supportive work environment.
Working at Havells would allow me to contribute to the developme...
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